Receptacle Cage Positioning for Pluggable Module Mating
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Solution Overview
Problem
Conventional communication systems face performance issues due to improper mating of pluggable modules with communication connectors, leading to electrical connection problems, such as undermating resulting in improper connections and overmating causing damage to the connector.
Innovation Solution
A receptacle connector assembly with a receptacle cage and electrical connector assembly that includes module channels, stops, and shrouds to properly position and locate pluggable modules, providing electrical shielding and reducing loading stresses on the connector.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pluggable modules are allowed to mate freely with the communication connector, then ease of operation is improved, but reliability deteriorates due to undermating or overmating issues
Solution Approach 1:
The receptacle cage acts as an intermediary component between the pluggable module and the electrical connector assembly. It provides mechanical guidance through module channels and positioning stops, ensuring proper alignment and preventing both undermating and overmating. The cage's walls and separators guide the module into the correct position before it contacts the electrical connector, thereby maintaining reliability while preserving ease of operation.
2Ease of manufacture
If the pluggable module is positioned without precise location features, then ease of manufacture is improved, but manufacturing precision deteriorates leading to improper mating
Solution Approach 1:
The receptacle cage incorporates pre-formed module channels and positioning stops that are integrated into its structure. These features are created during the cage manufacturing process itself, rather than requiring separate assembly steps. The channels and stops are precisely formed to provide the necessary positioning accuracy, while the cage as a single component maintains ease of manufacture and assembly.
3Reliability
If electrical shielding is added to prevent interference, then reliability is improved, but device complexity increases
Solution Approach 1:
The receptacle cage serves multiple functions simultaneously: it provides mechanical guidance through its walls and channels, offers positioning through integrated stops, and delivers electrical shielding through its conductive enclosure. By combining these functions into a single component, the design achieves reliable signal integrity without significantly increasing overall device complexity, as the shielding function is integrated rather than added as a separate element.
4Manufacturing precision
If the receptacle cage includes multiple positioning features for upper and lower modules, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The receptacle cage merges multiple positioning features for both upper and lower pluggable modules into a single integrated structure. The cage includes walls, separators, an upper module stop, and a lower module stop all as one component. This consolidation provides precise positioning for multiple modules simultaneously while reducing the total number of separate parts, thereby improving manufacturing precision without proportionally increasing device complexity.
Data Source
AI summary
A communication system having a circuit board with an airflow opening includes a receptacle cage configured to be mounted to the circuit board adjacent a communication connector. The receptacle cage has walls including a front wall, a rear wall and side walls defining a cavity. A module channel is defined in the cavity configured to receive a pluggable module. The module channel has a module port at the front wall that receives the pluggable module. An airflow channel is defined by at least one of the walls of the receptacle cage located between the module channel and the circuit board. The airflow channel is configured to be in flow communication with the airflow opening in the circuit board for cooling the pluggable module in the module channel. The airflow channel has an airflow port at the front wall.